Security key



FIG. 1 is a front elevational view of a security key showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view, the right side elevational view being a mirror image thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top perspective view thereof;

FIG. 7 is a bottom perspective view thereof;

FIG. 8 is a front elevational view of a second embodiment of a security key;

FIG. 9 is top plan view of FIG. 8;

FIG. 10 is a left side elevational view of FIG. 8, the right side elevational view being a mirror image thereof;

FIG. 11 is a bottom plan view of FIG. 8;

FIG. 12 is a rear elevational view of FIG. 8;

FIG. 13 is a top perspective view of FIG. 8; and,

FIG. 14 is a bottom perspective view of FIG. 8. 

The ornamental design for a security key, as shown and described. 